Pervasive® DataRush™ (PDR) is a 100% Java framework that allows developers to quickly build highly parallel, data-intensive applications that take full advantage of multicore, SMP platforms. No specialized knowledge is required in threading, concurrent memory access, deadlock detection, data workload partitioning/buffering or any other complex aspect of parallel thread execution. In fact, now developers can quickly build highly-parallel data processing applications for today's multicore hardware all without the need to deal with threading libraries, deadlock detection algorithms, or concurrent process design issues.

PDR comes with a rich library of out-of-the-box Java components that can be assembled into a series of data flow operations. Where custom components need to be added or extended, developers simply use the DataRush SDK to quickly build and extend their DataRush application.

Rich Component Library

• Foundational library that includes I/O, sort, merge, join and other operators
• Extensibility is provided by Java components that can be re-used and extended into higher-order components and/or assemblies

Parallel Processing Engine

• The DataRush execution environment (DRE) allows for on-the-fly optimization of data processing applications
• Any number of custom operators can be easily included by extending the execution classpath of DRE to include your JAR files
• Debugging is made simpler with DRE execution statistics that provide component-level runtime statistics

PDR is a Java implementation of dataflow.  Here is more information from wikipedia.org:  Dataflow Programming is a simple, natural, powerful approach for programming multicore.  See below.